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SybaseExecutionFactory.java
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SybaseExecutionFactory.java
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/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
/*
*/
package org.teiid.translator.jdbc.sybase;
import java.sql.Connection;
import java.sql.Date;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import org.teiid.core.util.StringUtil;
import org.teiid.language.Command;
import org.teiid.language.Expression;
import org.teiid.language.Function;
import org.teiid.language.Literal;
import org.teiid.language.SQLConstants;
import org.teiid.logging.LogConstants;
import org.teiid.logging.LogManager;
import org.teiid.translator.ExecutionContext;
import org.teiid.translator.SourceSystemFunctions;
import org.teiid.translator.Translator;
import org.teiid.translator.TranslatorException;
import org.teiid.translator.TranslatorProperty;
import org.teiid.translator.jdbc.AliasModifier;
import org.teiid.translator.jdbc.ConvertModifier;
import org.teiid.translator.jdbc.EscapeSyntaxModifier;
import org.teiid.translator.jdbc.FunctionModifier;
import org.teiid.translator.jdbc.ModFunctionModifier;
import org.teiid.translator.jdbc.ParseFormatFunctionModifier;
import org.teiid.translator.jdbc.Version;
import org.teiid.translator.jdbc.oracle.ConcatFunctionModifier;
@Translator(name="sybase", description="A translator for Sybase Database")
public class SybaseExecutionFactory extends BaseSybaseExecutionFactory {
public static final Version TWELVE_5_3 = Version.getVersion("12.5.3"); //$NON-NLS-1$
public static final Version TWELVE_5 = Version.getVersion("12.5"); //$NON-NLS-1$
public static final Version FIFTEEN_0_2 = Version.getVersion("15.0.2"); //$NON-NLS-1$
public static final Version FIFTEEN_5 = Version.getVersion("15.5"); //$NON-NLS-1$
protected Map<String, Integer> formatMap = new HashMap<String, Integer>();
protected boolean jtdsDriver;
public SybaseExecutionFactory() {
setSupportsFullOuterJoins(false);
setMaxInCriteriaSize(250);
setMaxDependentInPredicates(8);
populateDateFormats();
}
protected void populateDateFormats() {
formatMap.put("MM/dd/yy", 1); //$NON-NLS-1$
formatMap.put("yy.MM.dd", 2); //$NON-NLS-1$
formatMap.put("dd/MM/yy", 3); //$NON-NLS-1$
formatMap.put("dd.MM.yy", 4); //$NON-NLS-1$
formatMap.put("dd-MM-yy", 5); //$NON-NLS-1$
formatMap.put("dd MMM yy", 6); //$NON-NLS-1$
formatMap.put("MMM dd, yy", 7); //$NON-NLS-1$
formatMap.put("MM-dd-yy", 10); //$NON-NLS-1$
formatMap.put("yy/MM/dd", 11); //$NON-NLS-1$
formatMap.put("yyMMdd", 12); //$NON-NLS-1$
formatMap.put("yyddMM", 13); //$NON-NLS-1$
formatMap.put("MM/yy/dd", 14); //$NON-NLS-1$
formatMap.put("dd/yy/MM", 15); //$NON-NLS-1$
formatMap.put("MMM dd yy HH:mm:ss", 16); //$NON-NLS-1$
for (Map.Entry<String, Integer> entry : new HashSet<Map.Entry<String, Integer>>(formatMap.entrySet())) {
formatMap.put(entry.getKey().replace("yy", "yyyy"), entry.getValue() + 100); //$NON-NLS-1$ //$NON-NLS-2$
}
formatMap.put("MMM d yyyy hh:mma", 100); //$NON-NLS-1$
formatMap.put("HH:mm:ss", 8); //$NON-NLS-1$
formatMap.put("MMM d yyyy hh:mm:ss:SSSa", 109); //$NON-NLS-1$
formatMap.put("hh:mma", 17); //$NON-NLS-1$
formatMap.put("HH:mm", 18); //$NON-NLS-1$
formatMap.put("hh:mm:ss:SSSa", 19); //$NON-NLS-1$
formatMap.put("HH:mm:ss:SSS", 20); //$NON-NLS-1$
formatMap.put("yy/MM/dd HH:mm:ss", 21); //$NON-NLS-1$
formatMap.put("yy/MM/dd hh:mm:ssa", 22); //$NON-NLS-1$
formatMap.put("yyyy-MM-dd'T'HH:mm:ss", 23); //$NON-NLS-1$
}
public void start() throws TranslatorException {
super.start();
registerFunctionModifier(SourceSystemFunctions.MOD, new ModFunctionModifier("%", getLanguageFactory())); //$NON-NLS-1$
if (nullPlusNonNullIsNull()) {
registerFunctionModifier(SourceSystemFunctions.CONCAT, new AliasModifier("+")); //$NON-NLS-1$
} else {
registerFunctionModifier(SourceSystemFunctions.CONCAT, new ConcatFunctionModifier(getLanguageFactory()) {
@Override
public List<?> translate(Function function) {
function.setName("+"); //$NON-NLS-1$
return super.translate(function);
}
});
}
registerFunctionModifier(SourceSystemFunctions.LCASE, new AliasModifier("lower")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.IFNULL, new AliasModifier("isnull")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.UCASE, new AliasModifier("upper")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.REPEAT, new AliasModifier("replicate")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.SUBSTRING, new SubstringFunctionModifier(getLanguageFactory()));
registerFunctionModifier(SourceSystemFunctions.DAYNAME, new EscapeSyntaxModifier());
registerFunctionModifier(SourceSystemFunctions.MONTHNAME, new EscapeSyntaxModifier());
registerFunctionModifier(SourceSystemFunctions.DAYOFWEEK, new EscapeSyntaxModifier());
registerFunctionModifier(SourceSystemFunctions.DAYOFYEAR, new EscapeSyntaxModifier());
registerFunctionModifier(SourceSystemFunctions.DAYOFMONTH, new EscapeSyntaxModifier());
registerFunctionModifier(SourceSystemFunctions.HOUR, new EscapeSyntaxModifier());
registerFunctionModifier(SourceSystemFunctions.MINUTE, new EscapeSyntaxModifier());
registerFunctionModifier(SourceSystemFunctions.QUARTER, new EscapeSyntaxModifier());
registerFunctionModifier(SourceSystemFunctions.SECOND, new EscapeSyntaxModifier());
registerFunctionModifier(SourceSystemFunctions.WEEK, new EscapeSyntaxModifier());
registerFunctionModifier(SourceSystemFunctions.LENGTH, new EscapeSyntaxModifier());
registerFunctionModifier(SourceSystemFunctions.ATAN2, new EscapeSyntaxModifier());
registerFunctionModifier(SourceSystemFunctions.TIMESTAMPADD, new EscapeSyntaxModifier() {
@Override
public List<?> translate(Function function) {
if (!isFracSeconds(function)) {
return super.translate(function);
}
//convert from billionths to thousandths
return Arrays.asList("dateadd(millisecond, ", function.getParameters().get(1), "/1000000, ", function.getParameters().get(2), ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
});
registerFunctionModifier(SourceSystemFunctions.TIMESTAMPDIFF, new EscapeSyntaxModifier() {
@Override
public List<?> translate(Function function) {
if (!isFracSeconds(function)) {
return super.translate(function);
}
//convert from billionths to thousandths
return Arrays.asList("datediff(millisecond, ", function.getParameters().get(1), ",", function.getParameters().get(2), ")*1000000"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
});
//add in type conversion
ConvertModifier convertModifier = new ConvertModifier();
convertModifier.setBooleanNullable(booleanNullable());
//boolean isn't treated as bit, since it doesn't support null
//byte is treated as smallint, since tinyint is unsigned
convertModifier.addTypeMapping("smallint", FunctionModifier.BYTE, FunctionModifier.SHORT); //$NON-NLS-1$
convertModifier.addTypeMapping("int", FunctionModifier.INTEGER); //$NON-NLS-1$
convertModifier.addTypeMapping("numeric(19,0)", FunctionModifier.LONG); //$NON-NLS-1$
convertModifier.addTypeMapping("real", FunctionModifier.FLOAT); //$NON-NLS-1$
convertModifier.addTypeMapping("double precision", FunctionModifier.DOUBLE); //$NON-NLS-1$
convertModifier.addTypeMapping("numeric(38, 0)", FunctionModifier.BIGINTEGER); //$NON-NLS-1$
convertModifier.addTypeMapping("numeric(38, 19)", FunctionModifier.BIGDECIMAL); //$NON-NLS-1$
convertModifier.addTypeMapping("char(1)", FunctionModifier.CHAR); //$NON-NLS-1$
convertModifier.addTypeMapping("varchar(40)", FunctionModifier.STRING); //$NON-NLS-1$
convertModifier.addTypeMapping("datetime", FunctionModifier.DATE, FunctionModifier.TIME, FunctionModifier.TIMESTAMP); //$NON-NLS-1$
convertModifier.addConvert(FunctionModifier.TIMESTAMP, FunctionModifier.TIME, new FunctionModifier() {
@Override
public List<?> translate(Function function) {
List<Object> result = new ArrayList<Object>();
result.add("cast("); //$NON-NLS-1$
boolean needsEnd = false;
if (!nullPlusNonNullIsNull() && !ConcatFunctionModifier.isNotNull(function.getParameters().get(0))) {
result.add("CASE WHEN "); //$NON-NLS-1$
result.add(function.getParameters().get(0));
result.add(" IS NOT NULL THEN "); //$NON-NLS-1$
needsEnd = true;
}
result.add("'1970-01-01 ' + "); //$NON-NLS-1$
result.addAll(convertTimeToString(function));
if (needsEnd) {
result.add(" END"); //$NON-NLS-1$
}
result.add(" AS datetime)"); //$NON-NLS-1$
return result;
}
});
convertModifier.addConvert(FunctionModifier.TIMESTAMP, FunctionModifier.DATE, new FunctionModifier() {
@Override
public List<?> translate(Function function) {
List<Object> result = new ArrayList<Object>();
result.add("cast("); //$NON-NLS-1$
result.addAll(convertDateToString(function));
result.add(" AS datetime)"); //$NON-NLS-1$
return result;
}
});
convertModifier.addConvert(FunctionModifier.TIME, FunctionModifier.STRING, new FunctionModifier() {
@Override
public List<?> translate(Function function) {
return convertTimeToString(function);
}
});
convertModifier.addConvert(FunctionModifier.DATE, FunctionModifier.STRING, new FunctionModifier() {
@Override
public List<?> translate(Function function) {
return convertDateToString(function);
}
});
convertModifier.addConvert(FunctionModifier.TIMESTAMP, FunctionModifier.STRING, new FunctionModifier() {
@Override
public List<?> translate(Function function) {
return convertTimestampToString(function);
}
});
convertModifier.addNumericBooleanConversions();
registerFunctionModifier(SourceSystemFunctions.CONVERT, convertModifier);
registerFunctionModifier(SourceSystemFunctions.PARSETIMESTAMP, new ParseFormatFunctionModifier("CONVERT(DATETIME, ") { //$NON-NLS-1$
@Override
protected Object translateFormat(String format) {
return formatMap.get(format);
}
});
registerFunctionModifier(SourceSystemFunctions.FORMATTIMESTAMP, new ParseFormatFunctionModifier("CONVERT(VARCHAR, ") { //$NON-NLS-1$
@Override
protected Object translateFormat(String format) {
return formatMap.get(format);
}
});
}
private List<Object> convertTimeToString(Function function) {
return Arrays.asList("convert(varchar, ", function.getParameters().get(0), ", 8)"); //$NON-NLS-1$ //$NON-NLS-2$
}
protected List<Object> convertDateToString(Function function) {
return Arrays.asList("stuff(stuff(convert(varchar, ", function.getParameters().get(0), ", 102), 5, 1, '-'), 8, 1, '-')"); //$NON-NLS-1$ //$NON-NLS-2$
}
//TODO: this looses the milliseconds
protected List<?> convertTimestampToString(Function function) {
LinkedList<Object> result = new LinkedList<Object>();
result.addAll(convertDateToString(function));
result.add('+');
result.addAll(convertTimeToString(function));
return result;
}
@Override
public List<String> getSupportedFunctions() {
List<String> supportedFunctions = new ArrayList<String>();
supportedFunctions.addAll(super.getSupportedFunctions());
supportedFunctions.add("ABS"); //$NON-NLS-1$
supportedFunctions.add("ACOS"); //$NON-NLS-1$
supportedFunctions.add("ASIN"); //$NON-NLS-1$
supportedFunctions.add("ATAN"); //$NON-NLS-1$
supportedFunctions.add("ATAN2"); //$NON-NLS-1$
supportedFunctions.add("COS"); //$NON-NLS-1$
supportedFunctions.add("COT"); //$NON-NLS-1$
supportedFunctions.add("DEGREES"); //$NON-NLS-1$
supportedFunctions.add("EXP"); //$NON-NLS-1$
supportedFunctions.add("FLOOR"); //$NON-NLS-1$
supportedFunctions.add("LOG"); //$NON-NLS-1$
supportedFunctions.add("LOG10"); //$NON-NLS-1$
supportedFunctions.add("MOD"); //$NON-NLS-1$
supportedFunctions.add("PI"); //$NON-NLS-1$
supportedFunctions.add("POWER"); //$NON-NLS-1$
supportedFunctions.add("RADIANS"); //$NON-NLS-1$
supportedFunctions.add("SIGN"); //$NON-NLS-1$
supportedFunctions.add("SIN"); //$NON-NLS-1$
supportedFunctions.add("SQRT"); //$NON-NLS-1$
supportedFunctions.add("TAN"); //$NON-NLS-1$
supportedFunctions.add("ASCII"); //$NON-NLS-1$
supportedFunctions.add("CHAR"); //$NON-NLS-1$
supportedFunctions.add("CHR"); //$NON-NLS-1$
supportedFunctions.add("CONCAT"); //$NON-NLS-1$
supportedFunctions.add("||"); //$NON-NLS-1$
supportedFunctions.add("LCASE"); //$NON-NLS-1$
supportedFunctions.add("LEFT"); //$NON-NLS-1$
supportedFunctions.add("LENGTH"); //$NON-NLS-1$
supportedFunctions.add("LOWER"); //$NON-NLS-1$
supportedFunctions.add("LTRIM"); //$NON-NLS-1$
supportedFunctions.add("REPEAT"); //$NON-NLS-1$
//supportedFunctions.add("RAND"); //$NON-NLS-1$
supportedFunctions.add("RIGHT"); //$NON-NLS-1$
supportedFunctions.add("RTRIM"); //$NON-NLS-1$
supportedFunctions.add("SPACE"); //$NON-NLS-1$
supportedFunctions.add("SUBSTRING"); //$NON-NLS-1$
supportedFunctions.add("UCASE"); //$NON-NLS-1$
supportedFunctions.add("UPPER"); //$NON-NLS-1$
//supportedFunctons.add("CURDATE"); //$NON-NLS-1$
//supportedFunctons.add("CURTIME"); //$NON-NLS-1$
supportedFunctions.add("DAYNAME"); //$NON-NLS-1$
supportedFunctions.add("DAYOFMONTH"); //$NON-NLS-1$
supportedFunctions.add("DAYOFWEEK"); //$NON-NLS-1$
supportedFunctions.add("DAYOFYEAR"); //$NON-NLS-1$
supportedFunctions.add("HOUR"); //$NON-NLS-1$
supportedFunctions.add("MINUTE"); //$NON-NLS-1$
supportedFunctions.add("MONTH"); //$NON-NLS-1$
supportedFunctions.add("MONTHNAME"); //$NON-NLS-1$
//supportedFunctions.add("NOW"); //$NON-NLS-1$
supportedFunctions.add("QUARTER"); //$NON-NLS-1$
supportedFunctions.add("SECOND"); //$NON-NLS-1$
supportedFunctions.add("TIMESTAMPADD"); //$NON-NLS-1$
supportedFunctions.add("TIMESTAMPDIFF"); //$NON-NLS-1$
supportedFunctions.add("WEEK"); //$NON-NLS-1$
supportedFunctions.add("YEAR"); //$NON-NLS-1$
supportedFunctions.add("CAST"); //$NON-NLS-1$
supportedFunctions.add("CONVERT"); //$NON-NLS-1$
supportedFunctions.add("IFNULL"); //$NON-NLS-1$
supportedFunctions.add("NVL"); //$NON-NLS-1$
//supportedFunctions.add("FORMATTIMESTAMP"); //$NON-NLS-1$
return supportedFunctions;
}
@Override
public boolean supportsInlineViews() {
return true;
}
@Override
public boolean supportsFunctionsInGroupBy() {
return true;
}
@Override
public int getMaxFromGroups() {
return 50;
}
@Override
public boolean supportsAggregatesEnhancedNumeric() {
return getVersion().compareTo(FIFTEEN_0_2) >= 0;
}
public boolean nullPlusNonNullIsNull() {
return false;
}
public boolean booleanNullable() {
return false;
}
@Override
public String translateLiteralTimestamp(Timestamp timestampValue) {
return "CAST('" + formatDateValue(timestampValue) +"' AS DATETIME)"; //$NON-NLS-1$ //$NON-NLS-2$
}
@Override
public String translateLiteralDate(Date dateValue) {
return "CAST('" + formatDateValue(dateValue) +"' AS DATE)"; //$NON-NLS-1$ //$NON-NLS-2$
}
private boolean isFracSeconds(Function function) {
Expression e = function.getParameters().get(0);
return (e instanceof Literal && SQLConstants.NonReserved.SQL_TSI_FRAC_SECOND.equalsIgnoreCase((String)((Literal)e).getValue()));
}
@Override
public boolean supportsRowLimit() {
return (getVersion().getMajorVersion() == 12 && getVersion().compareTo(TWELVE_5_3) >= 0) || getVersion().compareTo(FIFTEEN_0_2) >=0; //$NON-NLS-1$
}
@TranslatorProperty(display="JTDS Driver", description="True if the driver is the JTDS driver",advanced=true)
public boolean isJtdsDriver() {
return jtdsDriver;
}
public void setJtdsDriver(boolean jtdsDriver) {
this.jtdsDriver = jtdsDriver;
}
protected boolean setFetchSize() {
return isJtdsDriver();
}
@Override
public void setFetchSize(Command command, ExecutionContext context,
Statement statement, int fetchSize) throws SQLException {
if (!setFetchSize()) {
return;
}
super.setFetchSize(command, context, statement, fetchSize);
}
@Override
public void initCapabilities(Connection connection)
throws TranslatorException {
super.initCapabilities(connection);
if (!jtdsDriver) {
try {
jtdsDriver = StringUtil.indexOfIgnoreCase(connection.getMetaData().getDriverName(), "jtds") != -1; //$NON-NLS-1$
} catch (SQLException e) {
LogManager.logDetail(LogConstants.CTX_CONNECTOR, e, "Could not automatically determine if the jtds driver is in use"); //$NON-NLS-1$
}
}
}
@Override
protected boolean usesDatabaseVersion() {
return true;
}
@Override
public boolean supportsSelectWithoutFrom() {
return true;
}
}